214989870 has 24 divisors (see below), whose sum is σ = 516168504. Its totient is φ = 57309216.

The previous prime is 214989851. The next prime is 214989877. The reversal of 214989870 is 78989412.

214989870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214989877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78972 + ... + 81648.

It is an arithmetic number, because the mean of its divisors is an integer number (21507021).

Almost surely, 2^214989870 is an apocalyptic number.

214989870 is an abundant number, since it is smaller than the sum of its proper divisors (301178634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

214989870 is an frugal number, since it uses more digits than its factorization.

214989870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5364 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 214989870 is about 14662.5328644133. The cubic root of 214989870 is about 599.0632326505.

The spelling of 214989870 in words is "two hundred fourteen million, nine hundred eighty-nine thousand, eight hundred seventy".